Materials Literature
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Biodegradation of polylactide (PLA) under real composting conditions was investigated, and the results were compared with biodegradation values obtained in three simulated laboratory conditions (i.e., cumulative (CMR), gravimetric (GMR) and direct (DMR) methods). Laboratory conditions under-represent the biodegradatio…
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For detecting partial discharge of SF6 gas insulation switchgear(GIS) with the ultrasonic method,a 220 kV GIS bus bar cavity was taken as an object to design and simulate the typical partial discharge models in GIS.PD signals on different defects were thus detected with the ultrasonic method.The experimental results i…
Laboratory investigation, including a series of consolidation tests, was conducted on three marine deposits in order to study the effects of acidic contamination on the geotechnical properties of soils from coastal areas in Japan. Solutions of sulfuric acid were used to leach the clays for defined time periods ranging…
Two different groups of compositions for 80B2O3 + 15Na2O + (5-x) Al2O3 + (x) V2O5 and 85B2O3 + 10Na2O +(5-x) Al2O3 + (x) V2O5 (where x=1; 0.5 wt %) glass samples were prepared by quenching technique and doped with Cu2+ ions. Optical and structural properties of undoped glasses, and glasses doped with Cu2+ ions were ex…
By mid-2007, the three-dimensional (3D) structures of some 45,000 proteins have been solved, over a period where the linear structures of millions of genes have been defined. Technical challenges associated with X-ray crystallography are being overcome and high-throughput methods both for crystallization of proteins a…
In the growing field of nanotechnology there is a need to determine the physicochemical and potential toxicological properties of nanomaterials since many industrial, medical and consumer applications are based on an understanding of these properties and on a controlled exposure to the materials. This document provide…
Investigation of porphyrins, that are widely present in the nature, is often carried out with the use of their synthetic analogs as model compounds. meso-Tetraarylporphyrins 1 containing different substituents on the phenyl rings can be easily prepared by condensation reaction of pyrrole with corresponding benzaldehyd…
In this study nanofibres were manufactured from bicomponent PVA/cationic starch (CS) polymers solutions using the electrospinning method The effect of the starch derivative solution preparation procedure and weight ratio of bicomponent polymer solution on the morphology of nanofibres was investigated. Three types of p…
Fumed silica particles filled polypropylene (PP) filament fibers were prepared by melt spin pilot plant. First, virgin PP and silicas(hydrophilic and hydrophobic) were premixed using twin screw extruder to prepare silica containing PP composite resin. Then, the resin composite was again mixed with virgin PP and spun i…
In this paper we report on the outline of a Large Eddy Simulation subgrid model for liquid/gas phase interface dynamics. A key feature of the proposed model is to take the subgrid phase interface dynamics fully into account by employing a dual-scale approach. Instead of modeling the LES subgrid phase interface geometr…
The geometrical and electronic structures, and also the dopant formation energies, lattice constants, band structure and density of states （DOS） of Sr1-xYxTiO3 with x=00, 0125, 025 and 033 are calculated from the first principles of plane wave ultra-soft pseudo-potential method based on density functional theory.…
The first polymetallic Mn complex containing an amino acid (the pro-ligand DL-valine) is reported.
A green route for the synthesis of high quality zinc blende CdSe nanocrystals has been successfully established by using phosphine-free Se precursors combined with a cadmium precursor injection method. The effects of using different Se precursors, and adjustment of the molar ratios between the Cd and Se precursors hav…
The effects of chemical compositions on the microstructure and high-temperature creep strength of 9Cr-ODS steel was discussed in the light of quantitative data of δ-ferrite proportion and nano-size oxide particle dispersion, which were evaluated by dilatometric analysis and small angle neutron/X-ray scattering analysi…
Reflectors are an essential part of parabolic trough solar electric and other concentrating solar power (CSP) systems. Reflectors in CSP systems require a high reflectance over the solar wavelength spectrum and they must be durable to outdoor exposure and resist all forms of degradation over time. All utility-scale CS…
A novel approach for the preparation of “coupling-type noise suppressors” in which ferrite films are directly deposited onto the components of the printed circuit board is reported. Crystalline MnxZnyFe3−x−yO4 films were fabricated on IC chips and polyimide substrates by a soft-chemistry route at temperatures below 10…
This work elucidates the effects of high-temperature annealing on the microscopic and electronic structure of multiwalled carbon nanotubes (MWCNTs) using high-resolution transmission electron microscopy, micro-Raman spectroscopy, X-ray diffraction, X-ray absorption near-edge structure (XANES) and valence-band photoemi…
The reactions of InCp* with alkali metal silanides M(thf)(n)SiRPh(2) (R = Me, Ph) resulted in the triindanate [(Ph(3)Si)(3)In-In-In(SiPh(3))](-) with a linear arrangement of In atoms and the octaindium clusters [(In(8)(SiPh(3))(8)](m-) (m = 0, 2) amongst others, which were characterized by X-ray crystallography. The n…
We are paying attention to extremely low thermal conductivity (κ) materials which have a potential to be next generation thermoelectric materials. Most of the extremely low κ materials that have been reported so far are ternary thallium tellurides such as Ag-Tl-Te ternary system. However, as for Tl-Te binary system, t…